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http://dx.doi.org/10.6113/JPE.2011.11.5.655

Single-Stage Double-Buck Topologies with High Power Factor  

Pires, Vitor Fernao (ESTSetubal-Polytechnic Institute of Setubal/DEE)
Silva, Jose Fernando (Center for Innovation in Electrical and Energy Engineering (CIEEE))
Publication Information
Journal of Power Electronics / v.11, no.5, 2011 , pp. 655-661 More about this Journal
Abstract
This paper presents two topologies for single-stage single-phase double-buck type PFC converters, designed to operate at high power factor, near sinusoidal input currents and adjustable output voltage. Unlike the known buck type PFC topologies, in which the output voltage is always lower than the maximum input voltage, the proposed converters can operate at output voltages higher than the ac input peak voltage. A reduced number of switches on the main path of the current are another characteristic of the two proposed topologies. To shape the input line currents, a fast and robust controller based on a sliding mode approach is proposed. This active non-linear control strategy, applied to these converters allows high quality input currents. A Proportional Integral (PI) controller is adopted to regulate the output voltage of the converters. This external voltage controller modulates the amplitude of the sinusoidal input current references. The performances of the presented rectifiers are verified with experimental results.
Keywords
High power factor; Buck rectifier; Single-phase; Sliding mode controller; Power converter;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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